Heat Transfer through Porous Media in Static Superfluid Helium

Journal Article · Thu Apr 27 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2202442· OSTI ID:20800219

Baudouy, B; Juster, F -P; Allain, H ^[1]; Prouzet, E; Larbot, A ^[2]; Maekawa, R ^[3]

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1. CEA/Saclay, DSM/DAPNIA/SACM, 91191 Gif-sur-Yvette CEDEX (France)
2. Institut Europeen des Membranes, CNRS, ENSCM, UM II, 34293 Montpellier CEDEX 5 (France)
3. National Institute of Fusion Science, Cryogenic Laboratory, Oroshi-cho, Toki, GIFU, 509-5292 (Japan)

Heat transfer through porous media in static saturated superfluid helium is investigated for porous media with different thickness, porosity and pore size. For large pore diameter, data are analyzed with the tortuosity concept in the pure Gorter-Mellink regime. It is shown that the tortuosity is constant over the temperature range investigated. For smaller pore diameter, the analysis reveals that the permeability is temperature-dependent in the Landau regime. In the intermediate regime, a model, including Landau and Gorter-Mellink regime, predicts a constant tortuosity within 10% but falls short predicting correctly the experimental data over the entire range of temperature.

• OSTI ID: 20800219
• Journal Information: AIP Conference Proceedings, Vol. 823, Issue 1; Conference: Cryogenic engineering conference, Keystone, CO (United States), 29 Aug - 2 Sep 2005; Other Information: DOI: 10.1063/1.2202442; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HEAT TRANSFER
HELIUM
HELIUM 4
PERMEABILITY
POROSITY
POROUS MATERIALS
SUPERFLUIDITY
TEMPERATURE DEPENDENCE